Hello,
I'm working on a projet to monitor voltages in an underwater enclosure. Once in the water the only links I have are Ethernet and 230V.
I was looking at different options, oscilloscopes with an LXI port like the Rigol DS1054Z, oscilloscopes like the Keysight DSO60x0L series.
The measurements to be made are to look at the output of a 4 quadrant inverter and see if overvoltage may appear. The PWM output is at 8kHz but I'd like to have 100Mhz per channel to see fast transients.
Would you recommend using the 400$ option with the Rigol, or the 15000$ option with the Keysight ?
The constraint is that I will not be able to physocally access the scope once it's in the underwater enclosure.
I wonder why the Keysight is so expensive regarding to its specs.
David
You really have to specify how deep is the water and how you plan to use it to get a sensible answer.
2 feet down? 100 feet down? 36,000+ feet down? Each will require very different machines.
- For two feet down, you can probably route the signal to above water.
- For 100 feet down, now it is beyond just wet. Water pressure is an issue. All seals need special care. The enclosure needs to be design not just to block water but also to withstand pressure.
- For use down at the Mariana Trench... at 36,000+ feet down, you better be in good standing with your God. There is a good likelihood you will meet him/her before you get your measuring device working.